[NA-User] Using NA for IARU M/S this weekend

Robert Pack (NX5M) nx5m at txcyber.com
Mon Jul 5 21:17:19 EDT 2004

The 10-minute rule is still in effect according to the 2004 rules and this
applies to band and mode.  A mode change is the same thing as a band change.
I checked on this with N1ND and he confirmed it.
Nothing is said about "band changes per hour" for IARU Multi-Single entries.
4.2. Multi Operator, Single Transmitter, Mixed Mode only

4.2.1. Must remain on a band and mode for at least 10 minutes before
changing bands or modes.

4.2.2. Only one transmitted signal is allowed at any given time.

4.2.3. All operators must observe the amateur radio regulations of their
country at all times.

4.2.4. Violation of the band change rules will reclassify the entry as a


I did not intend to get off the subject of NA but I thought this might be
worth mentioning.
Now back to our software thread......

I do not recall when 1059 was released so this brings up a question.  Has 59
been used in the M/S category in IARU?  Dave, you remember the problems we
had in the ARRL 10 last year?  Had something to do with mixed-mode or
something.  You had identified the problem and it was going to be resolved
in 1060.  I had to go back to 1058 after going qrt the first night.   It is
all in the archives if you need to refresh your memory.  I am wondering if
this same issue could arise in IARU or is it something that was unique to
the 10m contest (a single band contest)?

Bob NX5M
----- Original Message -----
From: "David A. Pruett" <k8cc at comcast.net>
To: <na-user at contesting.com>
Sent: Monday, July 05, 2004 5:08 PM
Subject: Re: [NA-User] Using NA for IARU M/S this weekend

> At 03:03 PM 7/5/04 -0500, Bob Pack, NX5M wrote:
> >On radio 2 I think all you can do now is SEARCH but not pounce if I read
> >the rules correctly.  It has been a few years since I did a multi in IARU
> >and it seems the rules have changed a bit.  To me, the best you can do
> >a 2nd radio is map a band and be ready to take over when the radio 1 op
> >gives it to you.  IF I am incorrect on this let me know.
> >And yes, intrastation band mapping is something that I brought up about a
> >year ago........that would be good.
> >See you all this weekend.
> Bob is correct - you can't P, you can only S.  But this does not change
> information offered.
> The only change in recent years to the IARU multi-op rules ("regular"
> entries, not including HQ club stations, for you nit pickers) has been to
> change from a "ten-minute rule" to "bandchanges per hour", and I believe
> that a mode change is now treated the same as a band change.  The essence
> of the rules have not changed - it's a true multi-single, with only one
> transmitted signal allowed and restrictions on bandchanging.
> Dave/K8CC
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